src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/event.cpp
   3 // Purpose:     Event classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/event.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/list.h"
  31     #include "wx/app.h"
  32     #include "wx/utils.h"
  33     #include "wx/stopwatch.h"
  34     #include "wx/module.h"
  35
  36     #if wxUSE_GUI
  37         #include "wx/control.h"
  38         #include "wx/dc.h"
  39         #include "wx/textctrl.h"
  40         #include "wx/validate.h"
  41     #endif // wxUSE_GUI
  42 #endif
  43
  44 // ----------------------------------------------------------------------------
  45 // wxWin macros
  46 // ----------------------------------------------------------------------------
  47
  48 #if wxUSE_BASE
  49     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  50     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  51 #endif // wxUSE_BASE
  52
  53 #if wxUSE_GUI
  54     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  55     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  56     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  57     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  58     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  59     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
  91 #endif // wxUSE_GUI
  92
  93 #if wxUSE_BASE
  94
  95 const wxEventTable *wxEvtHandler::GetEventTable() const
  96     { return &wxEvtHandler::sm_eventTable; }
  97
  98 const wxEventTable wxEvtHandler::sm_eventTable =
  99     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 100
 101 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 102     { return wxEvtHandler::sm_eventHashTable; }
 103
 104 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 105
 106 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 107     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 108
 109
 110 #ifdef __WXDEBUG__
 111 // Clear up event hash table contents or we can get problems
 112 // when C++ is cleaning up the static object
 113 class wxEventTableEntryModule: public wxModule
 114 {
 115 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 116 public:
 117     wxEventTableEntryModule() {}
 118     bool OnInit() { return true; }
 119     void OnExit()
 120     {
 121         wxEventHashTable::ClearAll();
 122     }
 123 };
 124 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 125 #endif
 126
 127 // ----------------------------------------------------------------------------
 128 // global variables
 129 // ----------------------------------------------------------------------------
 130
 131 // To put pending event handlers
 132 wxList *wxPendingEvents = (wxList *)NULL;
 133
 134 #if wxUSE_THREADS
 135     // protects wxPendingEvents list
 136     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 137 #endif
 138
 139 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 140
 141 // common event types are defined here, other event types are defined by the
 142 // components which use them
 143
 144 const wxEventType wxEVT_FIRST = 10000;
 145 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 146
 147 DEFINE_EVENT_TYPE(wxEVT_NULL)
 148 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 149 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 150 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 151
 152 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 153
 154 #endif // wxUSE_BASE
 155
 156 #if wxUSE_GUI
 157
 158 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 159
 160 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 161 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 162 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 163 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 176
 177 // Mouse event types
 178 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 179 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 180 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 181 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 182 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 183 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 184 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 185 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 186 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 187 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 188 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 189 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 190 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 191 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 192 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 193 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 194
 195 // Non-client mouse events
 196 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 197 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 198 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 199 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 200 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 201 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 202 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 203 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 204 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 205 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 206 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 207 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 208
 209 // Character input event type
 210 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 211 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 212 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 213 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 214 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 215 #if wxUSE_HOTKEY
 216 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 217 #endif
 218
 219 // Set cursor event
 220 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 221
 222 // wxScrollbar and wxSlider event identifiers
 223 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 224 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 225 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 226 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 227 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 228 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 229 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 230 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 231 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 232
 233 // Scroll events from wxWindow
 234 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 235 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 237 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 238 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 242
 243 // System events
 244 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 245 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 246 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 247 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 248 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 249 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 250 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 251 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 252 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 253 DEFINE_EVENT_TYPE(wxEVT_POWER)
 254 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 255 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 256 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 257 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 258 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 259 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 260 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 261 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
 262 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 263 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 264 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 265 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 266 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 267 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 268 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 269 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 270 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 271 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 272 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 273 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 274 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 275 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 276 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 277 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 278 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 279 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 280 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 281 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 282 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 283 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 284 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 285
 286 // Clipboard events
 287 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
 288 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
 289 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
 290
 291 // Generic command events
 292 // Note: a click is a higher-level event than button down/up
 293 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 294 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 295 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 296 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 297 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 298 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 299 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 300
 301 // Help events
 302 DEFINE_EVENT_TYPE(wxEVT_HELP)
 303 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 304
 305 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 306
 307 #endif // wxUSE_GUI
 308
 309 #if wxUSE_BASE
 310
 311 // ============================================================================
 312 // implementation
 313 // ============================================================================
 314
 315 // ----------------------------------------------------------------------------
 316 // event initialization
 317 // ----------------------------------------------------------------------------
 318
 319 int wxNewEventType()
 320 {
 321     // MT-FIXME
 322     static int s_lastUsedEventType = wxEVT_FIRST;
 323
 324     return s_lastUsedEventType++;
 325 }
 326
 327 // ----------------------------------------------------------------------------
 328 // wxEvent
 329 // ----------------------------------------------------------------------------
 330
 331 /*
 332  * General wxWidgets events, covering
 333  * all interesting things that might happen (button clicking, resizing,
 334  * setting text in widgets, etc.).
 335  *
 336  * For each completely new event type, derive a new event class.
 337  *
 338  */
 339
 340 wxEvent::wxEvent(int theId, wxEventType commandType )
 341 {
 342     m_eventType = commandType;
 343     m_eventObject = (wxObject *) NULL;
 344     m_timeStamp = 0;
 345     m_id = theId;
 346     m_skipped = false;
 347     m_callbackUserData = (wxObject *) NULL;
 348     m_isCommandEvent = false;
 349     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 350 }
 351
 352 wxEvent::wxEvent(const wxEvent &src)
 353     : wxObject(src)
 354     , m_eventObject(src.m_eventObject)
 355     , m_eventType(src.m_eventType)
 356     , m_timeStamp(src.m_timeStamp)
 357     , m_id(src.m_id)
 358     , m_callbackUserData(src.m_callbackUserData)
 359     , m_propagationLevel(src.m_propagationLevel)
 360     , m_skipped(src.m_skipped)
 361     , m_isCommandEvent(src.m_isCommandEvent)
 362 {
 363 }
 364
 365 #endif // wxUSE_BASE
 366
 367 #if wxUSE_GUI
 368
 369 /*
 370  * Command events
 371  *
 372  */
 373
 374 #ifdef __VISUALC__
 375     // 'this' : used in base member initializer list (for m_commandString)
 376     #pragma warning(disable:4355)
 377 #endif
 378
 379 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 380               : wxEvent(theId, commandType)
 381 {
 382     m_clientData = (char *) NULL;
 383     m_clientObject = (wxClientData *) NULL;
 384     m_extraLong = 0;
 385     m_commandInt = 0;
 386     m_isCommandEvent = true;
 387
 388     // the command events are propagated upwards by default
 389     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 390 }
 391
 392 #ifdef __VISUALC__
 393     #pragma warning(default:4355)
 394 #endif
 395
 396 wxString wxCommandEvent::GetString() const
 397 {
 398     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 399         return m_cmdString;
 400     else
 401     {
 402 #if wxUSE_TEXTCTRL
 403         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 404         if(txt)
 405             return txt->GetValue();
 406         else
 407 #endif // wxUSE_TEXTCTRL
 408             return m_cmdString;
 409     }
 410 }
 411
 412 /*
 413  * UI update events
 414  */
 415
 416 #if wxUSE_LONGLONG
 417 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 418 #endif
 419
 420 long wxUpdateUIEvent::sm_updateInterval = 0;
 421
 422 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 423
 424 // Can we update?
 425 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 426 {
 427     // Don't update if we've switched global updating off
 428     // and this window doesn't support updates.
 429     if (win &&
 430        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 431        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 432         return false;
 433
 434     if (sm_updateInterval == -1)
 435         return false;
 436
 437     if (sm_updateInterval == 0)
 438         return true;
 439
 440 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 441     wxLongLong now = wxGetLocalTimeMillis();
 442     if (now > (sm_lastUpdate + sm_updateInterval))
 443     {
 444         return true;
 445     }
 446
 447     return false;
 448 #else
 449     // If we don't have wxStopWatch or wxLongLong, we
 450     // should err on the safe side and update now anyway.
 451     return true;
 452 #endif
 453 }
 454
 455 // Reset the update time to provide a delay until the next
 456 // time we should update
 457 void wxUpdateUIEvent::ResetUpdateTime()
 458 {
 459 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 460     if (sm_updateInterval > 0)
 461     {
 462         wxLongLong now = wxGetLocalTimeMillis();
 463         if (now > (sm_lastUpdate + sm_updateInterval))
 464         {
 465             sm_lastUpdate = now;
 466         }
 467     }
 468 #endif
 469 }
 470
 471 /*
 472  * Idle events
 473  */
 474
 475 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 476
 477 // Can we send an idle event?
 478 bool wxIdleEvent::CanSend(wxWindow* win)
 479 {
 480     // Don't update if we've switched global updating off
 481     // and this window doesn't support updates.
 482     if (win &&
 483        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 484        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 485         return false;
 486
 487     return true;
 488 }
 489
 490 /*
 491  * Scroll events
 492  */
 493
 494 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 495                              int id,
 496                              int pos,
 497                              int orient)
 498     : wxCommandEvent(commandType, id)
 499 {
 500     m_extraLong = orient;
 501     m_commandInt = pos;
 502 }
 503
 504 /*
 505  * ScrollWin events
 506  */
 507
 508 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 509                                    int pos,
 510                                    int orient)
 511 {
 512     m_eventType = commandType;
 513     m_extraLong = orient;
 514     m_commandInt = pos;
 515 }
 516
 517 /*
 518  * Mouse events
 519  *
 520  */
 521
 522 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 523 {
 524     m_eventType = commandType;
 525     m_metaDown = false;
 526     m_altDown = false;
 527     m_controlDown = false;
 528     m_shiftDown = false;
 529     m_leftDown = false;
 530     m_rightDown = false;
 531     m_middleDown = false;
 532     m_x = 0;
 533     m_y = 0;
 534     m_wheelRotation = 0;
 535     m_wheelDelta = 0;
 536     m_linesPerAction = 0;
 537     m_wheelAxis = 0;
 538 }
 539
 540 void wxMouseEvent::Assign(const wxMouseEvent& event)
 541 {
 542     m_eventType = event.m_eventType;
 543
 544     m_x = event.m_x;
 545     m_y = event.m_y;
 546
 547     m_leftDown = event.m_leftDown;
 548     m_middleDown = event.m_middleDown;
 549     m_rightDown = event.m_rightDown;
 550
 551     m_controlDown = event.m_controlDown;
 552     m_shiftDown = event.m_shiftDown;
 553     m_altDown = event.m_altDown;
 554     m_metaDown = event.m_metaDown;
 555
 556     m_wheelRotation = event.m_wheelRotation;
 557     m_wheelDelta = event.m_wheelDelta;
 558     m_linesPerAction = event.m_linesPerAction;
 559     m_wheelAxis = event.m_wheelAxis;
 560 }
 561
 562 // return true if was a button dclick event
 563 bool wxMouseEvent::ButtonDClick(int but) const
 564 {
 565     switch (but)
 566     {
 567         default:
 568             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 569             // fall through
 570
 571         case wxMOUSE_BTN_ANY:
 572             return (LeftDClick() || MiddleDClick() || RightDClick());
 573
 574         case wxMOUSE_BTN_LEFT:
 575             return LeftDClick();
 576
 577         case wxMOUSE_BTN_MIDDLE:
 578             return MiddleDClick();
 579
 580         case wxMOUSE_BTN_RIGHT:
 581             return RightDClick();
 582     }
 583 }
 584
 585 // return true if was a button down event
 586 bool wxMouseEvent::ButtonDown(int but) const
 587 {
 588     switch (but)
 589     {
 590         default:
 591             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 592             // fall through
 593
 594         case wxMOUSE_BTN_ANY:
 595             return (LeftDown() || MiddleDown() || RightDown());
 596
 597         case wxMOUSE_BTN_LEFT:
 598             return LeftDown();
 599
 600         case wxMOUSE_BTN_MIDDLE:
 601             return MiddleDown();
 602
 603         case wxMOUSE_BTN_RIGHT:
 604             return RightDown();
 605     }
 606 }
 607
 608 // return true if was a button up event
 609 bool wxMouseEvent::ButtonUp(int but) const
 610 {
 611     switch (but)
 612     {
 613         default:
 614             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 615             // fall through
 616
 617         case wxMOUSE_BTN_ANY:
 618             return (LeftUp() || MiddleUp() || RightUp());
 619
 620         case wxMOUSE_BTN_LEFT:
 621             return LeftUp();
 622
 623         case wxMOUSE_BTN_MIDDLE:
 624             return MiddleUp();
 625
 626         case wxMOUSE_BTN_RIGHT:
 627             return RightUp();
 628     }
 629 }
 630
 631 // return true if the given button is currently changing state
 632 bool wxMouseEvent::Button(int but) const
 633 {
 634     switch (but)
 635     {
 636         default:
 637             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 638             // fall through
 639
 640         case wxMOUSE_BTN_ANY:
 641             return ButtonUp(wxMOUSE_BTN_ANY) ||
 642                     ButtonDown(wxMOUSE_BTN_ANY) ||
 643                         ButtonDClick(wxMOUSE_BTN_ANY);
 644
 645         case wxMOUSE_BTN_LEFT:
 646             return LeftDown() || LeftUp() || LeftDClick();
 647
 648         case wxMOUSE_BTN_MIDDLE:
 649             return MiddleDown() || MiddleUp() || MiddleDClick();
 650
 651         case wxMOUSE_BTN_RIGHT:
 652             return RightDown() || RightUp() || RightDClick();
 653     }
 654 }
 655
 656 bool wxMouseEvent::ButtonIsDown(int but) const
 657 {
 658     switch (but)
 659     {
 660         default:
 661             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 662             // fall through
 663
 664         case wxMOUSE_BTN_ANY:
 665             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 666
 667         case wxMOUSE_BTN_LEFT:
 668             return LeftIsDown();
 669
 670         case wxMOUSE_BTN_MIDDLE:
 671             return MiddleIsDown();
 672
 673         case wxMOUSE_BTN_RIGHT:
 674             return RightIsDown();
 675     }
 676 }
 677
 678 int wxMouseEvent::GetButton() const
 679 {
 680     for ( int i = 1; i <= 3; i++ )
 681     {
 682         if ( Button(i) )
 683         {
 684             return i;
 685         }
 686     }
 687
 688     return wxMOUSE_BTN_NONE;
 689 }
 690
 691 // Find the logical position of the event given the DC
 692 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 693 {
 694     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 695     return pt;
 696 }
 697
 698
 699 /*
 700  * Keyboard event
 701  *
 702  */
 703
 704 wxKeyEvent::wxKeyEvent(wxEventType type)
 705 {
 706     m_eventType = type;
 707     m_shiftDown = false;
 708     m_controlDown = false;
 709     m_metaDown = false;
 710     m_altDown = false;
 711     m_keyCode = 0;
 712     m_scanCode = 0;
 713 #if wxUSE_UNICODE
 714     m_uniChar = 0;
 715 #endif
 716 }
 717
 718 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 719     : wxEvent(evt)
 720 {
 721     m_x = evt.m_x;
 722     m_y = evt.m_y;
 723
 724     m_keyCode = evt.m_keyCode;
 725
 726     m_controlDown = evt.m_controlDown;
 727     m_shiftDown = evt.m_shiftDown;
 728     m_altDown = evt.m_altDown;
 729     m_metaDown = evt.m_metaDown;
 730     m_scanCode = evt.m_scanCode;
 731     m_rawCode = evt.m_rawCode;
 732     m_rawFlags = evt.m_rawFlags;
 733
 734 #if wxUSE_UNICODE
 735     m_uniChar = evt.m_uniChar;
 736 #endif
 737 }
 738
 739 #if WXWIN_COMPATIBILITY_2_6
 740 long wxKeyEvent::KeyCode() const
 741 {
 742     return m_keyCode;
 743 }
 744 #endif // WXWIN_COMPATIBILITY_2_6
 745
 746 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 747 {
 748     SetEventType(wxEVT_CREATE);
 749     SetEventObject(win);
 750 }
 751
 752 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 753 {
 754     SetEventType(wxEVT_DESTROY);
 755     SetEventObject(win);
 756 }
 757
 758 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 759                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 760 {
 761     SetEventObject(win);
 762 }
 763
 764 // ----------------------------------------------------------------------------
 765 // wxHelpEvent
 766 // ----------------------------------------------------------------------------
 767
 768 /* static */
 769 wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
 770 {
 771     if ( origin == Origin_Unknown )
 772     {
 773         // assume that the event comes from the help button if it's not from
 774         // keyboard and that pressing F1 always results in the help event
 775         origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
 776     }
 777
 778     return origin;
 779 }
 780
 781 #endif // wxUSE_GUI
 782
 783
 784 #if wxUSE_BASE
 785
 786 // ----------------------------------------------------------------------------
 787 // wxEventHashTable
 788 // ----------------------------------------------------------------------------
 789
 790 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 791
 792 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 793
 794 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 795                 : m_table(table),
 796                   m_rebuildHash(true)
 797 {
 798     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 799
 800     m_next = sm_first;
 801     if (m_next)
 802         m_next->m_previous = this;
 803     sm_first = this;
 804 }
 805
 806 wxEventHashTable::~wxEventHashTable()
 807 {
 808     if (m_next)
 809         m_next->m_previous = m_previous;
 810     if (m_previous)
 811         m_previous->m_next = m_next;
 812     if (sm_first == this)
 813         sm_first = m_next;
 814
 815     Clear();
 816 }
 817
 818 void wxEventHashTable::Clear()
 819 {
 820     size_t i;
 821     for(i = 0; i < m_size; i++)
 822     {
 823         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 824         if (eTTnode)
 825         {
 826             delete eTTnode;
 827         }
 828     }
 829
 830     // Necessary in order to not invoke the
 831     // overloaded delete operator when statics are cleaned up
 832     if (m_eventTypeTable)
 833         delete[] m_eventTypeTable;
 834
 835     m_eventTypeTable = NULL;
 836     m_size = 0;
 837 }
 838
 839 // Clear all tables
 840 void wxEventHashTable::ClearAll()
 841 {
 842     wxEventHashTable* table = sm_first;
 843     while (table)
 844     {
 845         table->Clear();
 846         table = table->m_next;
 847     }
 848 }
 849
 850 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 851 {
 852     if (m_rebuildHash)
 853     {
 854         InitHashTable();
 855         m_rebuildHash = false;
 856     }
 857
 858     if (!m_eventTypeTable)
 859         return false;
 860
 861     // Find all entries for the given event type.
 862     wxEventType eventType = event.GetEventType();
 863     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 864     if (eTTnode && eTTnode->eventType == eventType)
 865     {
 866         // Now start the search for an event handler
 867         // that can handle an event with the given ID.
 868         const wxEventTableEntryPointerArray&
 869             eventEntryTable = eTTnode->eventEntryTable;
 870
 871         const size_t count = eventEntryTable.GetCount();
 872         for (size_t n = 0; n < count; n++)
 873         {
 874             if ( wxEvtHandler::
 875                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 876             {
 877                 return true;
 878             }
 879         }
 880     }
 881
 882     return false;
 883 }
 884
 885 void wxEventHashTable::InitHashTable()
 886 {
 887     // Loop over the event tables and all its base tables.
 888     const wxEventTable *table = &m_table;
 889     while (table)
 890     {
 891         // Retrieve all valid event handler entries
 892         const wxEventTableEntry *entry = table->entries;
 893         while (entry->m_fn != 0)
 894         {
 895             // Add the event entry in the Hash.
 896             AddEntry(*entry);
 897
 898             entry++;
 899         }
 900
 901         table = table->baseTable;
 902     }
 903
 904     // Lets free some memory.
 905     size_t i;
 906     for(i = 0; i < m_size; i++)
 907     {
 908         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 909         if (eTTnode)
 910         {
 911             eTTnode->eventEntryTable.Shrink();
 912         }
 913     }
 914 }
 915
 916 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 917 {
 918     // This might happen 'accidentally' as the app is exiting
 919     if (!m_eventTypeTable)
 920         return;
 921
 922     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 923     EventTypeTablePointer  eTTnode = *peTTnode;
 924
 925     if (eTTnode)
 926     {
 927         if (eTTnode->eventType != entry.m_eventType)
 928         {
 929             // Resize the table!
 930             GrowEventTypeTable();
 931             // Try again to add it.
 932             AddEntry(entry);
 933             return;
 934         }
 935     }
 936     else
 937     {
 938         eTTnode = new EventTypeTable;
 939         eTTnode->eventType = entry.m_eventType;
 940         *peTTnode = eTTnode;
 941     }
 942
 943     // Fill all hash entries between entry.m_id and entry.m_lastId...
 944     eTTnode->eventEntryTable.Add(&entry);
 945 }
 946
 947 void wxEventHashTable::AllocEventTypeTable(size_t size)
 948 {
 949     m_eventTypeTable = new EventTypeTablePointer[size];
 950     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 951     m_size = size;
 952 }
 953
 954 void wxEventHashTable::GrowEventTypeTable()
 955 {
 956     size_t oldSize = m_size;
 957     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 958
 959     // TODO: Search the most optimal grow sequence
 960     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 961
 962     for ( size_t i = 0; i < oldSize; /* */ )
 963     {
 964         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 965         if (eTToldNode)
 966         {
 967             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 968             EventTypeTablePointer  eTTnode = *peTTnode;
 969
 970             // Check for collision, we don't want any.
 971             if (eTTnode)
 972             {
 973                 GrowEventTypeTable();
 974                 continue; // Don't increment the counter,
 975                           // as we still need to add this element.
 976             }
 977             else
 978             {
 979                 // Get the old value and put it in the new table.
 980                 *peTTnode = oldEventTypeTable[i];
 981             }
 982         }
 983
 984         i++;
 985     }
 986
 987     delete[] oldEventTypeTable;
 988 }
 989
 990
 991 // ----------------------------------------------------------------------------
 992 // wxEvtHandler
 993 // ----------------------------------------------------------------------------
 994
 995 /*
 996  * Event handler
 997  */
 998
 999 wxEvtHandler::wxEvtHandler()
1000 {
1001     m_nextHandler = (wxEvtHandler *) NULL;
1002     m_previousHandler = (wxEvtHandler *) NULL;
1003     m_enabled = true;
1004     m_dynamicEvents = (wxList *) NULL;
1005     m_pendingEvents = (wxList *) NULL;
1006 #if wxUSE_THREADS
1007 #  if !defined(__VISAGECPP__)
1008     m_eventsLocker = new wxCriticalSection;
1009 #  endif
1010 #endif
1011
1012     // no client data (yet)
1013     m_clientData = NULL;
1014     m_clientDataType = wxClientData_None;
1015 }
1016
1017 wxEvtHandler::~wxEvtHandler()
1018 {
1019     // Takes itself out of the list of handlers
1020     if (m_previousHandler)
1021         m_previousHandler->m_nextHandler = m_nextHandler;
1022
1023     if (m_nextHandler)
1024         m_nextHandler->m_previousHandler = m_previousHandler;
1025
1026     if (m_dynamicEvents)
1027     {
1028         wxList::iterator it = m_dynamicEvents->begin(),
1029                          en = m_dynamicEvents->end();
1030         for (;it != en; ++it)
1031         {
1032 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1033             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1034 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1035             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1036 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1037
1038             if (entry->m_callbackUserData)
1039                 delete entry->m_callbackUserData;
1040             delete entry;
1041         }
1042         delete m_dynamicEvents;
1043     };
1044
1045     if (m_pendingEvents)
1046         m_pendingEvents->DeleteContents(true);
1047     delete m_pendingEvents;
1048
1049 #if wxUSE_THREADS
1050 #  if !defined(__VISAGECPP__)
1051     delete m_eventsLocker;
1052 #  endif
1053
1054     // Remove us from wxPendingEvents if necessary.
1055     if(wxPendingEventsLocker)
1056         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1057     if ( wxPendingEvents )
1058     {
1059         // Delete all occurences of this from the list of pending events
1060         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1061     }
1062     if(wxPendingEventsLocker)
1063         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1064 #endif
1065
1066     // we only delete object data, not untyped
1067     if ( m_clientDataType == wxClientData_Object )
1068         delete m_clientObject;
1069 }
1070
1071 #if wxUSE_THREADS
1072
1073 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1074 {
1075     // check that we are really in a child thread
1076     wxASSERT_MSG( !wxThread::IsMain(),
1077                   wxT("use ProcessEvent() in main thread") );
1078
1079     AddPendingEvent(event);
1080
1081     return true;
1082 }
1083
1084 void wxEvtHandler::ClearEventLocker()
1085 {
1086 #if !defined(__VISAGECPP__)
1087     delete m_eventsLocker;
1088     m_eventsLocker = NULL;
1089 #endif
1090 }
1091
1092 #endif // wxUSE_THREADS
1093
1094 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1095 {
1096     // 1) Add event to list of pending events of this event handler
1097
1098     wxEvent *eventCopy = event.Clone();
1099
1100     // we must be able to copy the events here so the event class must
1101     // implement Clone() properly instead of just providing a NULL stab for it
1102     wxCHECK_RET( eventCopy,
1103                  _T("events of this type aren't supposed to be posted") );
1104
1105     wxENTER_CRIT_SECT( Lock() );
1106
1107     if ( !m_pendingEvents )
1108       m_pendingEvents = new wxList;
1109
1110     m_pendingEvents->Append(eventCopy);
1111
1112     wxLEAVE_CRIT_SECT( Lock() );
1113
1114     // 2) Add this event handler to list of event handlers that
1115     //    have pending events.
1116
1117     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1118
1119     if ( !wxPendingEvents )
1120         wxPendingEvents = new wxList;
1121     wxPendingEvents->Append(this);
1122
1123     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1124
1125     // 3) Inform the system that new pending events are somewhere,
1126     //    and that these should be processed in idle time.
1127     wxWakeUpIdle();
1128 }
1129
1130 void wxEvtHandler::ProcessPendingEvents()
1131 {
1132     // this method is only called by wxApp if this handler does have
1133     // pending events
1134     wxCHECK_RET( m_pendingEvents,
1135                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1136
1137     wxENTER_CRIT_SECT( Lock() );
1138
1139     // we leave the loop once we have processed all events that were present at
1140     // the start of ProcessPendingEvents because otherwise we could get into
1141     // infinite loop if the pending event handler execution resulted in another
1142     // event being posted
1143     size_t n = m_pendingEvents->size();
1144     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1145           node;
1146           node = m_pendingEvents->GetFirst() )
1147     {
1148         wxEvent *event = (wxEvent *)node->GetData();
1149
1150         // It's importan we remove event from list before processing it.
1151         // Else a nested event loop, for example from a modal dialog, might
1152         // process the same event again.
1153
1154         m_pendingEvents->Erase(node);
1155
1156         wxLEAVE_CRIT_SECT( Lock() );
1157
1158         ProcessEvent(*event);
1159
1160         delete event;
1161
1162         wxENTER_CRIT_SECT( Lock() );
1163
1164         if ( --n == 0 )
1165             break;
1166     }
1167
1168     wxLEAVE_CRIT_SECT( Lock() );
1169 }
1170
1171 /*
1172  * Event table stuff
1173  */
1174 /* static */ bool
1175 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1176                                     wxEvtHandler *handler,
1177                                     wxEvent& event)
1178 {
1179     int tableId1 = entry.m_id,
1180         tableId2 = entry.m_lastId;
1181
1182     // match only if the event type is the same and the id is either -1 in
1183     // the event table (meaning "any") or the event id matches the id
1184     // specified in the event table either exactly or by falling into
1185     // range between first and last
1186     if ((tableId1 == wxID_ANY) ||
1187         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1188         (tableId2 != wxID_ANY &&
1189          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1190     {
1191         event.Skip(false);
1192         event.m_callbackUserData = entry.m_callbackUserData;
1193
1194 #if wxUSE_EXCEPTIONS
1195         if ( wxTheApp )
1196         {
1197             // call the handler via wxApp method which allows the user to catch
1198             // any exceptions which may be thrown by any handler in the program
1199             // in one place
1200             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1201         }
1202         else
1203 #endif // wxUSE_EXCEPTIONS
1204         {
1205             // no need for an extra virtual function call
1206             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1207         }
1208
1209         if (!event.GetSkipped())
1210             return true;
1211     }
1212
1213     return false;
1214 }
1215
1216 bool wxEvtHandler::TryParent(wxEvent& event)
1217 {
1218     if ( wxTheApp && (this != wxTheApp) )
1219     {
1220         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1221         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1222         // processed appropriately via SearchEventTable.
1223         if ( event.GetEventType() != wxEVT_IDLE )
1224         {
1225             if ( wxTheApp->ProcessEvent(event) )
1226                 return true;
1227         }
1228     }
1229
1230     return false;
1231 }
1232
1233 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1234 {
1235     // allow the application to hook into event processing
1236     if ( wxTheApp )
1237     {
1238         int rc = wxTheApp->FilterEvent(event);
1239         if ( rc != -1 )
1240         {
1241             wxASSERT_MSG( rc == 1 || rc == 0,
1242                           _T("unexpected wxApp::FilterEvent return value") );
1243
1244             return rc != 0;
1245         }
1246         //else: proceed normally
1247     }
1248
1249     // An event handler can be enabled or disabled
1250     if ( GetEvtHandlerEnabled() )
1251     {
1252         // if we have a validator, it has higher priority than our own event
1253         // table
1254         if ( TryValidator(event) )
1255             return true;
1256
1257         // Handle per-instance dynamic event tables first
1258         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1259             return true;
1260
1261         // Then static per-class event tables
1262         if ( GetEventHashTable().HandleEvent(event, this) )
1263             return true;
1264     }
1265
1266     // Try going down the event handler chain
1267     if ( GetNextHandler() )
1268     {
1269         if ( GetNextHandler()->ProcessEvent(event) )
1270             return true;
1271     }
1272
1273     // Finally propagate the event upwards the window chain and/or to the
1274     // application object as necessary
1275     return TryParent(event);
1276 }
1277
1278
1279 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1280 {
1281     const wxEventType eventType = event.GetEventType();
1282     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1283     {
1284         const wxEventTableEntry& entry = table.entries[i];
1285         if ( eventType == entry.m_eventType )
1286         {
1287             if ( ProcessEventIfMatches(entry, this, event) )
1288                 return true;
1289         }
1290     }
1291
1292     return false;
1293 }
1294
1295 void wxEvtHandler::Connect( int id, int lastId,
1296                             int eventType,
1297                             wxObjectEventFunction func,
1298                             wxObject *userData,
1299                             wxEvtHandler* eventSink )
1300 {
1301 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1302     wxEventTableEntry *entry = new wxEventTableEntry;
1303     entry->m_eventType = eventType;
1304     entry->m_id = id;
1305     entry->m_lastId = lastId;
1306     entry->m_fn = func;
1307     entry->m_callbackUserData = userData;
1308 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1309     wxDynamicEventTableEntry *entry =
1310         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1311 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1312
1313     if (!m_dynamicEvents)
1314         m_dynamicEvents = new wxList;
1315
1316     // Insert at the front of the list so most recent additions are found first
1317     m_dynamicEvents->Insert( (wxObject*) entry );
1318 }
1319
1320 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1321                   wxObjectEventFunction func,
1322                   wxObject *userData,
1323                   wxEvtHandler* eventSink )
1324 {
1325     if (!m_dynamicEvents)
1326         return false;
1327
1328     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1329     while (node)
1330     {
1331 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1332             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1333 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1334             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1335 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1336
1337         if ((entry->m_id == id) &&
1338             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1339             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1340             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1341             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1342             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1343         {
1344             if (entry->m_callbackUserData)
1345                 delete entry->m_callbackUserData;
1346             m_dynamicEvents->Erase( node );
1347             delete entry;
1348             return true;
1349         }
1350         node = node->GetNext();
1351     }
1352     return false;
1353 }
1354
1355 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1356 {
1357     wxCHECK_MSG( m_dynamicEvents, false,
1358                  wxT("caller should check that we have dynamic events") );
1359
1360     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1361     while (node)
1362     {
1363 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1364         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1365 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1366         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1367 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1368
1369         // get next node before (maybe) calling the event handler as it could
1370         // call Disconnect() invalidating the current node
1371         node = node->GetNext();
1372
1373         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1374         {
1375             wxEvtHandler *handler =
1376 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1377                                     entry->m_eventSink ? entry->m_eventSink
1378                                                        :
1379 #endif
1380                                                          this;
1381
1382             if ( ProcessEventIfMatches(*entry, handler, event) )
1383             {
1384                 return true;
1385             }
1386         }
1387     }
1388
1389     return false;
1390 }
1391
1392 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1393 {
1394     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1395                   wxT("can't have both object and void client data") );
1396
1397     if ( m_clientObject )
1398         delete m_clientObject;
1399
1400     m_clientObject = data;
1401     m_clientDataType = wxClientData_Object;
1402 }
1403
1404 wxClientData *wxEvtHandler::DoGetClientObject() const
1405 {
1406     // it's not an error to call GetClientObject() on a window which doesn't
1407     // have client data at all - NULL will be returned
1408     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1409                   wxT("this window doesn't have object client data") );
1410
1411     return m_clientObject;
1412 }
1413
1414 void wxEvtHandler::DoSetClientData( void *data )
1415 {
1416     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1417                   wxT("can't have both object and void client data") );
1418
1419     m_clientData = data;
1420     m_clientDataType = wxClientData_Void;
1421 }
1422
1423 void *wxEvtHandler::DoGetClientData() const
1424 {
1425     // it's not an error to call GetClientData() on a window which doesn't have
1426     // client data at all - NULL will be returned
1427     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1428                   wxT("this window doesn't have void client data") );
1429
1430     return m_clientData;
1431 }
1432
1433 #endif // wxUSE_BASE
1434
1435 #if wxUSE_GUI
1436
1437 // Find a window with the focus, that is also a descendant of the given window.
1438 // This is used to determine the window to initially send commands to.
1439 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1440 {
1441     // Process events starting with the window with the focus, if any.
1442     wxWindow* focusWin = wxWindow::FindFocus();
1443     wxWindow* win = focusWin;
1444
1445     // Check if this is a descendant of this frame.
1446     // If not, win will be set to NULL.
1447     while (win)
1448     {
1449         if (win == ancestor)
1450             break;
1451         else
1452             win = win->GetParent();
1453     }
1454     if (win == (wxWindow*) NULL)
1455         focusWin = (wxWindow*) NULL;
1456
1457     return focusWin;
1458 }
1459
1460 // ----------------------------------------------------------------------------
1461 // wxEventBlocker
1462 // ----------------------------------------------------------------------------
1463
1464 wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1465 {
1466     wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1467
1468     m_window = win;
1469
1470     Block(type);
1471     m_window->PushEventHandler(this);
1472 }
1473
1474 wxEventBlocker::~wxEventBlocker()
1475 {
1476     wxEvtHandler *popped = m_window->PopEventHandler(false);
1477     wxCHECK_RET(popped == this,
1478         wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1479 }
1480
1481 bool wxEventBlocker::ProcessEvent(wxEvent& event)
1482 {
1483     // should this event be blocked?
1484     for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1485     {
1486         wxEventType t = (wxEventType)m_eventsToBlock[i];
1487         if ( t == wxEVT_ANY || t == event.GetEventType() )
1488             return true;   // yes, it should: mark this event as processed
1489     }
1490
1491     return false;
1492 }
1493
1494 #endif // wxUSE_GUI